[Dune] dune-grid-howto examples programs on parallel computers

Markus Blatt Markus.Blatt at iwr.uni-heidelberg.de
Wed Sep 1 18:01:48 CEST 2010


Hi,

On Wed, Sep 01, 2010 at 09:12:36PM +0530, Ankur Jayesh wrote:
> Dear Sir,
> I'm trying to use DUNE library v2.0 for my work. I am working on a cluster
> computer with MPICH2.
> The tests are not showing any speed-up due to the cluster. What could be the
> problem?
>
> The programs I've run are:
> gettingstarted
> finitevolume

Sorry for the misleading MPI initializers in these sample programs.
Both of these programs are not parallel. If you run them on a cluster
every process computes the same sequential program.
For parallel programs you have to proceed to chapter 9.

Cheers,

Markus

-- 
Markus Blatt, Interdisciplinary Center for Scientific Computing,
University Heidelberg, Im Neuenheimer Feld 368, D-69120 Heidelberg

'Mathematics knows no races or geographic boundaries; for
mathematics, the cultural world is one country' - David Hilbert



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